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235 Results

Digital Power Supply Design Workshop

When: 
March 3, 2020 9:00 am in Garching, Germany
Laboratory based digital power supply design workshop providing design engineers an in-depth look at the design of modern, robust switch mode power supplies.

TPS7A78 Calculator: How to Power an MCU from 240VAC

Date:
February 19, 2020

Duration:
03:00
Example #1: The is the first in a series of videos using the TPS7A78 component calculator to optimize TPS7A78 Cap-Drop Power Supply.
EV Charging (Pile) Stations Design Considerations

Introduction to EV Charging (Pile) Station Standards

Learn an overview of global standards and common subsystems within Level 1, 2 and 3 public and residential EV charging (pile) stations.

EV Charging (Pile) Stations Design Considerations

EV Charging (Pile) Station Subsystem Analysis

While an EV charging station (pile) might seem like a straight forward design, there are many challenges to consider when needing to safely control the power delivery. This training module will provide further insights with a subsystem analysis alongside solution examples that help you mitigate commonly overlooked subsystems including public user interfaces, an authentication mechanism and residential communications in EV charging (pile) stations.

EV Charging (Pile) Stations Design Considerations

AC and DC Charging (Pile) Station Design Considerations

Gain a deep dive into common design consideration for a Level 1, 2 or 3 EV charging (pile) station and explore the service equipment block diagram for each.

EV Charging (Pile) Stations Design Considerations

EV Charging Station System Solutions

Explore EV charging (pile) station system solutions from TI’s design library.

Introduction

This section covers wireless network trends, key technologies, and problem statements for smart grid IoT. 

System-Level Examples for Wireless Networks on Smart Grid IoT

This section covers system-level examples for wireless networks on smart grid IoT. We will provide software- and system-level details for two system examples: 6LoWPAN-Contiki and sub-1GHz sensor to cloud industrial IoT gateway reference design. 

Summary

This section summarizes the wireless network challenges and solutions for a smarter grid IoT training series. 

Introduction

Tune in to learn more about meter tampering, why it is a problem for utility providers and some common ways a meter is tampered.

Detecting case tamper attacks using inductive switches

The first line of defense against tampering by bypassing current, reversing connections, and disconnecting leads is the meter case. Due to this, it is common for utilities to require some form of intrusion detection system to detect when someone opens a case.  In this section, we will cover how to detect someone trying to open the case of a meter.

Detecting magnetic tampering using hall-effect sensors

For anti-tampering, it is common to try to detect the presence of a strong magnet. In this section, we will cover the use of hall sensors for low-power detection of strong magnetic fields in three dimensions.  Details on our magnetic tamper detection reference design, TIDA-00839, will be provided as well as some of the design considerations that were kept in mind when creating this reference design.  

Hardening a meter against magnetic tamper attacks

In this section, we will cover how to harden a meter against these magnetic tamper attacks by using shunts for current sensors. For poly-phase implementations, I will go over how to use isolated delta sigma modulators to add the necessary isolation to use shunt current sensors and create magnetically immune poly-phase energy measurement systems. The TIDA-00601 and TIDA-01094 reference designs, which show how to implement a poly-phase isolated shunt measurement system, will be discussed as well as the associated AMC1304 high-side power supplies used in these designs.

Summary

In this section, a summary of the entire Anti-tamper Techniques to Thwart Attacks on Smart Meters training series will be covered.  This summary includes the Detecting Case Tamper Attacks Using Inductive Switches, Detecting Magnetic Tampering Using Hall-effect Sensors and Hardening a Meter Against Magnetic Tamper Attacks sections of the training series. 

Electrical Fundamentals and Need for power systems protection

Welcome to the world of Power Systems. The first part of the session focuses on Introduction to Power Systems, Goal of Power systems protection, fundamentals of Electricity, AC or DC, Importance of electricity, Power system voltage levels and consumers of electricity. Need and Complexities in protection of power system primary Equipment like Generators, Motors, Transformers and Circuit Breakers and finally analysis of what can go wrong on a transmission line.

Introduction to Protection Relay and Power Systems Faults

Second part of the session explains use case for protection relay, the sequence of events during a fault, Fault Types and the approach for fault analysis. The Session also explains commonly used protection relays and application of different relays along the grid for protection of Generation, Transmission, Distribution and Industrial equipment, Evolution of protection relays from traditional mechanical, static and the current generation digital relays.

AC Analog Input Module Architecture (AIM)

The third part of the session provides details on the need to focus on AC analog input module and its use cases in different types of protection relays, Different types of current sensors and the use cases for these sensors including key advantages and dis-advantages. Explains AC analog input module architecture including block diagram showing the critical products and EERD with different subsystems identified showing different approaches for designing an AC AIM.

Selection of Key Components (ADC, Signal Conditioning Amplifier) for AC Analog Input Module (AIM)

Fourth part of the session explains representation of Voltage or Current waveforms in Time and frequency domain and also looks at the customer use case for application of Time or frequency domain Analysis. The session also explains different sampling approaches like Simultaneous sampling, Coherent sampling, Oversampling to improve system performance, criteria for ADC selection and choice between SAR and Delta-Sigma ADCs. There is a list of TI products that can be considered during the design of the AIM and finally provides overview for Focus ADCs for this session.

Design Details for TI design TIDA-00834 High Accuracy Analog Front End Using 16-Bit SAR ADC with ±10V Measurement Range Reference Design

Fifth part of the session will focus on providing detailed information on TIDA-00834 TI design.  The initial slides cover Design Overview, Features, Key Components, test Setup, market differentiators, Block Diagram with links to relevant TI Designs, EVMs and TI product used in this design. Circuit representation and detailed description for ADC interface, Voltage and Current measurement and Power supply are provided. Graphs for Voltage and Current measurement accuracy are shown; along with collaterals and TI design links that can be referred by customers during design.

LC-sensing solution with TI FemtoFET and CC1350 Sensor Controller Engine

Introduction to mechanical water meters and EN ISO 4064

This section covers the basics of mechanical water meters and the principle of operation for impeller based water meters. There are multiple standards for water meters around the world; the EN ISO 4064 is relevant to all European countries and has been adopted under a different name in some other regions as well.

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